Wear strip and floor ring



Dec. 5, 1950 H. ASTORCH WEAR STRIP AND FLOOR RING Filed Dec. 22, 1945 r I In L\\\\\\\\\\\\\\\ m' zza INVENTOR.

rraxlvsys,

Patented Dec. 5, 1950 ENE-TED STATES PATENT" OFFI-C E WEAR; STRIPLAND FLOOR RING- Harold A; St'brcli, Pontiac, Mich assign'or to Evans" Products Company, Detroit, Micl'n, a corporation"ofDelaware Application December 22, 1945;-Serial.-No 636,922"

14 Claims; 1.

fastening devices for aircraftand other vehicles, particularly for use. in. vehiclesv of that. class wherein. itis required that a load. be temporarily 2: substantially on'the linefie-'aofFig. 2- andilook ing: inthe direction. of the arrows; and,

Figs. 4, andv 6 are cross-sectional views taken substantiallyv on. the lines 4-4;. 55- and fir-6 but firmly held against'unwanted shifting or 5 respectively of Fig. 3, and. looking in the: direcdis-placement An. important object of the intion of the arrows, Fig. 4 showing the ringiinelevention is to provide improved combined load Vated position. fastening,.fioorreenforcing andskid means hav- Referring nowto. the. drawings, reference char.- ing. greatinechanicalstrength in. proportionto acter Ifi' designates. the--fi'oor of'acarrier, which. theweightand sizethereof, .and especially adapt- 10 for the purposes. of. illustrationmay; be assumed.- ed-for useinaircrait andother lightly constructed to be the floor of a. cargo. carrying airplane-and hi l is shown as formed-of sheet metal. Securedto An important object of, the. invention. is to the floor. in spaced parallel longitudinallyrextendprovide an, improvedskid strip for. th floor of. ing, relation and preferably.projectingthereabove ana-irplme orv the like,,which.strip.serves as a 16 are a plurality of strips-whichmay be formed.- loadsupporting and. floor reenforcing element 0f ded aluminum, magnesiuinalloyor other: and incorporates novel means for the attachment. Suitable a al, each strip comprisi a of. hoid-downdeviceswhereby the. cargo may be Smooth-surfaced hOriZOntal -D- e and afastenedlagaihst.unwantedshifting or.disp1ace.- Dlurality p d -ribs, including side'ribs rnent. Alrelatediobject' isto' provide such hold- 20 Walls L. intermediate ribs l5 and acentral; down means whereby the cargomay. be fastened rib "5,196 iDdiCa-tBd-iII-CIOSS S On' 'Fig a m uik' m e manner, by mean-50f It'willlbe noted that the: spacing betweenrthe: paratus both compactandlightin. weight;.the. Outer and intermediate ribs s l ll h' a g means requiring no Separate n close. In the areas in which-the hold-down rings: lationiandbeingicompleteiy outor the way when H are to be oun ed; the central rib. leriswut noun use. away, as indicated at 18, and the top web. l2ris t r bje t- 1 t provide novel hokpdown, pressed downwardly. or. otherwise. depressed to means ofl'the. character. indicated which is Dre-- 9i plocket ween-theribs I5. In. form? assembled with and'formsa part. ofareenfbrcthe p Web stra-nsversely out: ingandskid strip th trip and holddownmeans as lndicated at 21,, the lengthof the-cut con.-- being substituted (preferably in the. initial. conp to the distance ribs l5, and: struction of the vehicle) for the. conventional longitudinal cuts 22 are also formed' along sliidstripswith whichthefloors of cargo carrysides of'the D e d g-thedesired length ing vehicles, such as cargov airplanes, arenow pocketand' alignedwwith the i ner sur commgnly d' faces of the ribs 15. The inner. surfaceaof-the Anotherhbject is-t'o provide combined floor are exposedwhen the D'WB portionsskid' and'hold-down means of very, simple. and outlmed by the cuts are w d-ribs l5: rugged. character having no protrudingportions thus form the Sides of the pocket which might interfere with free movement of holddown ring assembly is ned in cargoandp'ersonnel over the floor when the hold- 40 h nbs by means of integral-bearing lug p0rdownfimeansjisnotjn use tions 24 projectingv laterally. from. the straight,. the drawing: shaftlike bottom portionof the ring assembly.-. g 1 j -pe e tiv View portion of the The ring portion, designated at -il,.is -semicircu--- floor of a cargo or freight compartment, p-ar- AS' Shown in Figs- 2 31x13, thesplit ends of' ticularly adaptedfor package freight and shown erial of the top w f rm d y he transthetypg-utifized J-HCargO carryingral-rplanes, verse cut 2| are separatedbythe act of depress packages, beingshown, Securedby means of mg the pocket-forming portions ofthe web. A: paratu'sconstructedinaccordance with'the presgap deeper slotted Section 0f Substantieh m i nti width is thereby. provided to accommodate. the Fig. z-isaplanview of a hold-down device con- Section f the r h tom or shaft' structed in accordance with the present invenportion the ring assembly 118 lies substam tion, iragmentarily showing a floor and adjacent. tially at the floor level, while the projecting-I portions o'f'one'of'my novel combined. skid'strip. rounded ring portionper se: is freelyswingable and hold-down devices; from. the upstanding-position in WhiOhitEiS SIIOWTI' Fig; 3 is a: longitudinal sectional. view taken in..dotted.lines-inFigs: 3:and-4 to1 the fiataposi tion shown in full lines in Figs. 2 and 3, in which it lies entirely within the pocket. The edges of the depressed portions of the top web l2 adjacent the slot may be tapered as indicated at 26 to provide clearance for the ring when laid flat (Fig. 3). The bearing portions 24 are accommodated in downwardly opening slots 21 in the ribs I5, and the slot 25 is slightly wider than the thickness of the ring. In assembling the parts, therefore, the ring may simply be slipped into place from the bottom, and a portion of the metal of the ribs I5 adjacent the bearing portions 24 may be staked over to prevent dislodgment of the ring assembly prior to installation of the strip, although this is of course a matter of choice.

The entire strip and hold-down assembly is directly secured to the floor, as by means of rivets 28 extending through the top web l2 and between the ribs l4, l5 upon both sides of the pockets. The rivets are preferably located adjacent the hold-down ring portions and beside the pocketed areas 251, as shown in Figs. 2 and 5. The stems of the rivets substantially fill the spaces between the ribs l l, l5, as shown, and accordingly greatly reenforce the structure and provide holding means of great strength adjacent the rings. The rivets are provided with countersunk fiat heads, and do not interfere with the eifectiveness of the portions of the skid strips which extend beside the pockets.

In those areas in which the rings are not in use, therefore, they present no interference whatever to the sliding of cargo, while separate installation of skid strip and hold-down ring in the manner now usual, is entirely eliminated.

Supplemental holding devices including upright bars 39, cross members 32 and fasteners 33 (forming no part of my present invention) may be connected to the rings, as shown, to secure the load in place. Packages 35 are shown to typify a held load. It will be apparent, however, that the supplemental holding means, and other features, may be varied without departure from the spirit and scope of the subjoined claims.

I claim:

1. A combined skid strip and hold-down element for package freight and the like, comprising an elongated strip member having a plurality of substantially vertical supporting ribs and a transverse top web connecting said ribs, said top web being relieved at intervals to define pockets extending downwardly between the ribs, and a holding element mounted in each of said pockets, pivoted in the ribs and swingable from a position in which it lies entirely within its pocket to a position in which it projects upwardly for attachment of cargo or the like thereto.

2. A combined wear strip and hold-down element for cargo compartments and the like, comprising an elongated strip member having a transverse top web and a plurality of depending supporting ribs, said top web being relieved in a limited area to define a reentrant pocke extending downwardly between a pair of said ribs, and a holding element mounted in said pocket and having an offset central portion and having end portions pivoted in said ribs, said central portion being swingable from a substantially fiat position in the pocket to an upstanding position in which attachment of fastening means thereto can conveniently be made.

3. Means as set forth in claim 1 in which said ribs are arranged in two pairs, the ribs of each pair lying relatively close to the margins of the strip, and said pocket lying between the inner ribs of the two pairs.

4. A combined wear strip and hold-down element for cargo compartments and the like, comprising an elongated strip member having a substantially continuous transverse top web and a plurality of supporting ribs spaced from one another and extending longitudinally therebeneath, one pair of said ribs extending along and relatively close to each edge of the strip, said top web being relieved in an area between the inner ribs of said two pairs of ribs, to define an upwardly opening pocket, and a holding element pivoted in said inner ribs and swingable to and from a position in which it lies within the pocket below the plane of the top web.

5. A combined wear strip and hold-down element for cargo compartments and the like, comprising an elongated strip member having a substantially continuous top web and a plurality of supporting walls spaced from one another and extending longitudinally therebeneath, said top web having depressed portions defining a pocket lying between said walls, and fastening means located in said pocket and attached to said walls.

6. A combined wear strip and hold-down element for cargo compartments and the like, comprising an elongated strip member having a substantially continuous top web and a plurality of supporting walls spaced from one another and extending longitudinally therebeneath, said top web having portions defining a pocket lying between said walls, and fastening means located in said pocket and comprising a member pivoted in said walls and swingable from an upstanding position to a position in which it lies below the top plane of the top web.

7. A combined wear strip and hold-down element for cargo compartments and the like, comprising an elongated strip member having a substantially continuous top web and a plurality of supporting walls spaced from one another and extending longitudinally therebeneath, said top web having portions defining a pocket lying between said walls, and fastening means located in said pocket, said strip being adapted to be secured to the floor of such a compartment with the bottoms of said walls bearing upon the floor and the top web elevated thereabove, said walls being slotted upwardly from their free bottom edges toward the top web at corresponding points upon opposite sides of said pocket, said fastening means including a member trunnioned in said slots and accessible from above the top web.

8. A combined wear strip and hold-down element for cargo compartments and the like, comprising an elongated strip member having a substantially continuous top web and a plurality of supporting walls spaced from one another and extending longitudinally therebeneath, said top web having portions defining a pocket lying between said walls and fastening means located in said pocket, said top web being depressed in an area between said walls to form said pocket.

9. A combined wear strip and hold-down element for cargo compartments and the like, comprising an elongated strip member having a substantially continuous top web and a plurality of supporting walls spaced from one another and extending longitudinally therebeneath, said top web having portions defining a pocket lying between said walls, and fastening means located in said pocket, said top web being severed to form an opening entirely therethrough constituting at least a part of said pocket, said fastening means comprising a member mounted in said severed portion and movable to lie entirely below the top of the web 01' to project upwardly therefrom.

10. A combined wear strip and hold-down element for cargo compartments and the like, comprising an elongated strip member having a substantially continuous top web and a plurality of supporting walls spaced from one another and extending longitudinally therebeneath, said top web having portions defining a pocket lying between said walls, and fastening means located in said pocket, said top web being severed to form an opening entirely therethrough constituting at least a part of said pocket.

11. A combined wear strip and hold-down element for cargo compartments and the like, comprising an elongated strip member having a substantially continuous top web and a plurality of supporting Walls spaced from one another and extending longitudinally therebeneath, said top web having portions defining a pocket lying between said walls, and fastening means located in said pocket, said top web being severed transversely and longitudinally in a pattern of substantially H-shape and which corresponds generally to the outlines of the pocket and lies between the walls, the tongue-like portions formed by the lines of separation thus defined being depressed to form the bottom and ends of said pocket, and the sides of the pocket being formed by said walls.

12. A combined wear strip and hold-down element for cargo compartments and the like, comprising an elongated strip member having a substantially continuous top web and a plurality of supporting walls spaced from one another and extending longitudinally therebeneath, said top web having portions defining a pocket lying between said walls, and fastening means located in said pocket, said top web being severed transversely and longitudinally in a pattern of substantially H-shape and which corresponds generally to the outlines of the pocket and lies between the walls, the tongue-like portions formed by the lines of separation thus defined being depressed to form the bottom and ends of said pocket, the sides of the pocket being formed by said walls, the ends of said tongue-like portions being separated to form a transverse slot in the bottom of said pocket, said fastening means projecting into said slot.

13. A combined wear strip and hold-down element for cargo compartments and the like, comprising an elongated strip member having a substantially continuous top web and a plurality of supporting walls spaced from one another and extending longitudinally therebeneath, said top web having portions defining a pocket lying between said walls, and fastening means located in said pocket, said top web being severed transversely and longitudinally in a pattern of substantially H-shape and which corresponds generally to the outlines of the pocket and lies between the walls, the tongue-like portions formed by the lines of separation thus defined being depressed to form the bottom and ends of said pocket, the sides of the pocket being formed by said walls, the ends of said tongue-like portions being separated to form a transverse slot in the bottom of said pocket, said fastening means having pivot portions trunnioned in said walls and at least partly accommodated in said slot, and a bail portion swingable to project upwardly from or to lie Within said pocket.

14. A combined Wear strip and hold-down element for cargo compartments and the like, comprising an elongated strip member having a substantially continuous top web and a plurality of supporting walls spaced from one another and extending longitudinally therebeneath, said top web having portions defining a pocket lying between said walls, fastening means located in said pocket, additional walls defining side walls of said pocket and spaced inwardly from the firstmentioned walls, said top web extending over the area between said first-mentioned and additional walls upon either side of said pocket, and means extending through the area between said firstmentioned and additional walls and substantially filling the cross-sectional area between said walls for securing said element to the floor of such a compartment.

HAROLD A. STORCH.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 299,032 Spruce May 20, 1884 1,753,838 Seeley Apr. 8, 1930 2,392,789 Watter Jan. 8, 1946 

